Veneering-machine.



No. 665,0l.

Patented m. n, Ism. E. s. KENNEDY.

VENEEBING MACHINE'.

(Application tiled Dee. 6, 1599.)

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UNITED :STATES PATENT (")FFICPL EDGAR S. KENNEDY, OF BALTIMORE, MARYLAND.

' VENEERING-MACHINE.

'SPECIFICATION forming part of Letters Patent No. ,665.015, dated J 8.1111815 1, 1901- Applieation filed December 6, 1899. Serial No. 739,381. (No model.)

To all whom t may concern.:

Be it known that I, EDGAR S. KENNEDY, a resident of Baltimore, Maryland, have invented anew and useful Improvement in Veneering-Machines, which invention is fully set forth in the following specification.

My invention relates to the art of veneer-'- ing, and more particularly to means whereby veneering upon cylindrical surfaces may be Iirmly and evenly held in contact With such surface until the glue has thoroughly dried.

The object of my invention is to firmly, evenly, and cheaply retain the veneer in contact with cylindrical surfaces-such as columns for mantels, sideboards, and the like- While the glue is drying; and With this end in view the invention resides in a machine composed, essentially, of three sets of devicesviz., winding mechanism, wherebya suitable cord, tape, or wire may be wound around the freshly-veneered cylinder; tension devices,

whereby the cord, tape, or Wire may be keptV under an even tension while being Wound, and shifting devices, whereby the Winding and tension devices are caused to act progressively from one end of the cylinder to the other.

My inventive idea may receive various mechanical expressions, and I have for the purpose of illustration shown 'one such in the accompanying drawings; but it is to be clearly understood that such drawings are intended for the purpose of illustration only and not as defining the limits of my invention.

In said drawings, Figure 1 is a front elevation of my veneerwrapping machine, and Fig. 2 is a transverse section on the line a: a; of Fig. 1 looking to the left.

Referring to the drawings, A indicates the frame of the machine, on the top of which are two jaws a a', mounted to turn in suitable bearings, the jaw a having on its shaft a driving-pulley b, which is 4engaged by a belt B, extending to a power-shaft. (Not shown.)

C, Fig. 2, is a column or other cylindrical surface having the veneering: thereon, said column being mounted between the chuckjaws a a, as shown in Fig. l, so as to turn therewith.

Secured to the frame A of the machine in any suitable manner is a face-'plate D, while a rail D extends alongthe entire front of the machine, being supported in any suitable manner, as by base plate D2, attached to the frameA. Mounted to travel along the rail D and the face-plate D is the spool and Fig. l) bearing against the inner face of saidrail, as will be understood from an inspection .of Fig. 2.

- G is a screw mounted in suitable bearings g on the front of the face-plate D and connected by sprocket-chain H to an extension of the shaft of the chuck-jaw a', so that the chuck-jaws a a', with their supported column C, revolve with the said screw G.

Referring to Fig. 2, I is a lever pivoted to A the frame-plate E of the carriage and having a half-nut I on the end thereof engaging the screw G, a spring I2 serving to hold the nut and screw in engagement.

I3 is a wire or cord attached tothe end of the lever I opposite the nut I, by means of which the lever may be conveniently operated against the tension of the spring I2 to disengage the-nut from the screw, t' i" being pins or hooks entering an eye or loop in the wire I3, whereby it may be retained in either' position desired. When the nut I is in engagement with the screw G and the latter is revolved, the carriage will be advanced across the front of the machine, while by lifting the link or Wire I3 and hanging it by its eye or loop on the hook i" the nut I will be thrown out of engagement with the screw G and the carriage will stop.

Revolubly mounted on a spindle extending from the face of the frame-plate E is a spool K, having a cord Wound thereon, which cord extends from the spool over an idler L to a tension device M and thence around a veneered column C. The tension device in the instance shown in the drawings consists of a bell-crank lever N, pivoted to the plate E', preferably on the opposite side thereof from the spool K, and having one arm-as, for example, the horizontal arm n-of the lever Nv IOO ' operative relation therewith.

engaged by a spring N', whose tension on the arm n is exertedin a downward direction, while the other arm n' of said bell-crank lever has a shaft or spindle N2 extending through a slot e in the plate E' and having a tensionpulley N3, with its attached brake device N4, revolubly mounted thereon. The tensionpulley has a V-shaped groove cut in its periphery, which groove is of such dimensions as to bite or frictionally engage the cord passing thereover, preferably the bite or friction being so great as to prevent the slipping of the cord through the groove except under very great strain. The brake device N4 is rigidly connected with the tension-pulley N3 and revolves therewith on the spindle or shaft N2. This brake device consists of a bandwheel N5, around which is passed a frictionband n2, preferably of leather, having one end connected to a pin 'n3 on the frameplate E' and the other end connected to a spring n4, which is also connected to the frame-plate E' and preferably by the pin 71,3, to which the end of the friction-band N2 is connected.

The operation of my improved veneeringmachine is as follows: The veneering c having been applied to the column C with a suitable cement between them, the column is placed in the chuck-jaws a a', as shown in Fig. l, and the cord 7.; is passed over the idler L, then around the tension-pulley N3, and thence to the column C, to which the end of the cord is attached. The machine being then started, the column .is revolved, and through the sprocket-chain connection the screw G is simultaneously revolved, the nut I' being in The result of lthe revolution to the column C is that the cord 7a is wound thereon, and *the action ot the screw G upon the nut I' causes the carriage to grad ually travel from left to right as the winding action takes place. As here shown, the cord is wound upon the column with each coil thereof in Contact with the preceding coil; but,if preferred, the feed of the carriage may be so regulated as to separate the coils or spirals of the cord to such a distance as may be required. This may be accomplished either by increasing the rotation of the screw G` relatively to the rotations of the column (l or by providing a screw with a greater pitch than that shown.

The bite or friction of the tension-pulleyN3 upon the cord 7c is such that the pulley N3 is revolved as the cord is fed along; but the free revolution of the tension-pulley is prevented by the action of the brake-strap N3 acting in relation with `the brake-wheel N5, the amount of friction between the strap and the brake-wheel being determined by the tension of the spring N4, coupled with the tension of the spring N', the

Atendency of which is to so tilt the bell-crank levier N as to throw the spindle N2, and with it the tension-pulley and brake-wheel, away from the column C. On the other hand, the spring N' yields to the pull on the cord 7c incident to the winding ot' the saine upon the column C, and the result of the combined action of the spring N', bell-crank N, with the tension-pulley N3, and brake N5 is that a su bstantially equal tension is at all times 1naintained on the cord 7c between the tension-pulley and the column C. The winding action having proceeded until the entire length of the column is wound with the cord, the nut I' is thrown out of contact with the screw G by lifting the link I3 and hanging it on the hook, when the carriage may be returned to its original position either by hand or otherwise ready to repeat the operation upon another column.

Having thus described my invention, what I claim is In a machine of the character described, the combination of means for su pporting and revolving the work to be wound, a carriage mounted to travel longitudinally along said work, a spool mounted on said carriage, a tension-pulley mounted in yielding bearings upon the carriage whereby it may bodily ad- Vance or recede from the work, means acting constantly to throw the tension-pulley away from the work, and a cord or tape carried upon the spool and wound upon the work which passes over said tension-pulley and acts constantly to cause the tension-pulley to approach the work.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

EDGAR S. KENNEDY.

Vitnesses:

J osErH S. MACNVILL'IAMS, GEORGE KENT. 

